At Tue, 16 Jan 2007 22:37:56 +0800, Yu-Chen Wu wrote: > > Hi all, > Can a buffer allocated by "vmalloc( )" be used to make DMA transmission (the > buffer will be used by BIO structure) on X86_64 platform? > I need a big buffer (cache) maybe 64MB or bigger, so I call vmalloc to > allocate the buffer. > If possible, how to get the pages in the buffer?
You can resolve the page via vmalloc_to_page(), and pass it in nopage callback. Takashi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
